@import url("css2.css");
@font-face {
  font-family: "Digital dream Regular";
  font-style: normal;
  font-weight: normal;
  src: url("https://assets.codepen.io/4439736/digital-dream.regular.woff") format("woff");
}
*::after,
*::before,
* {
  margin: 0;
  padding: 0;
  box-sizing: inherit;
}

html {
  font-size: 62.5%;
}

body {
  box-sizing: border-box;
  background-color: #E0E0E0;
  font-family: "Lato", sans-serif;
}

.calculator {
  width: 40rem;
  height: 60rem;
  margin: 5rem auto;
}
.calculator__top {
  width: 40rem;
  height: 20rem;
  padding: 1.2rem;
  background-color: rgba(0, 0, 0, 0.9);
  border-top-right-radius: 2.5rem;
  border-top-left-radius: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  position: relative;
}
.calculator__top h1 {
  color: rgba(255, 255, 255, 0.9);
  font-family: "Plaster", cursive;
}
.calculator__top--display {
  width: 100%;
  height: 12rem;
  border: 1.5rem solid #494D56;
  background-color: rgba(255, 255, 255, 0.7);
  border-radius: 1rem;
  font-size: 1.6rem;
  text-align: right;
  color: black;
  padding: 0.5rem;
  font-family: "Digital dream Regular";
}
.calculator__top--display.on {
  background-color: #48A1BE;
}
.calculator__top:after {
  content: linear-gradient(105deg, rgba(224, 224, 224, 0.3) 31%, transparent 33%);
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}
.calculator__middle {
  width: 100%;
  height: 3rem;
  background-color: #5f626e;
  position: relative;
}
.calculator__middle--top {
  border: 1px solid black;
  border-bottom: none;
  width: 100%;
  height: 1.5rem;
  box-shadow: 0px 1px 1px rgba(0, 0, 0, 0.5);
}
.calculator__middle--bottom {
  width: 100%;
  height: 1.5rem;
}
.calculator__middle--junction {
  position: absolute;
  top: 1.5rem;
  left: 10%;
  width: 80%;
  height: 1rem;
  border-bottom: 1px solid black;
  border-left: 1px solid black;
  border-right: 1px solid black;
  background-color: #5f626e;
  box-shadow: inset 0 -1.5px 2px rgba(0, 0, 0, 0.5);
}
.calculator__bottom {
  width: 40rem;
  height: 31rem;
  padding: 1rem;
  border: 5px solid #5f626e;
  border-bottom-right-radius: 2.5rem;
  border-bottom-left-radius: 2.5rem;
  display: grid;
  grid-gap: 0.6rem;
  justify-content: center;
  align-items: center;
  justify-items: center;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: repeat(7, 1fr);
  background-image: url("../image/fd.jpg");
  background-size: cover;
  background-position: left;
}
.calculator__bottom--item {
  border: 1px solid black;
  border-radius: 0.5rem;
  width: 5rem;
  height: 2.5rem;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.9);
  box-shadow: 1px 0px 3px rgba(0, 0, 0, 0.5);
}
.calculator__bottom--item:nth-of-type(1) {
  position: relative;
}
.calculator__bottom--item:nth-of-type(1):before {
  content: ". . .";
}
.calculator__bottom--item:nth-of-type(2) {
  grid-column: span 2;
  width: 9rem;
  position: relative;
}
.calculator__bottom--item:nth-of-type(2):before {
  content: ". . . . .";
}
.calculator__bottom--item:nth-of-type(1), .calculator__bottom--item:nth-of-type(2) {
  background-color: rgba(0, 0, 0, 0.7);
  border: 2px solid black;
  display: flex;
  justify-content: center;
  align-items: center;
}
.calculator__bottom--item:nth-of-type(1):before, .calculator__bottom--item:nth-of-type(2):before {
  font-size: 2rem;
  color: #333;
  position: absolute;
  top: -2.5rem;
  letter-spacing: 2px;
}
.calculator__bottom--item:nth-of-type(1) .cursor, .calculator__bottom--item:nth-of-type(2) .cursor {
  width: 1rem;
  height: 90%;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  box-shadow: -1px 0px 3px rgba(255, 255, 255, 0.8);
}
.calculator__bottom--item:nth-of-type(n + 12) {
  height: 5rem;
}
.calculator__bottom--item:nth-of-type(29) {
  grid-row: span 2;
  height: 10.5rem;
}
.calculator__bottom--item.item-black {
  background-color: black;
  font-size: 2rem;
}
.calculator__bottom--item.item-red {
  background-color: #9D1D3C;
  font-size: 2rem;
}
.calculator__bottom--item.item-blue {
  background-color: #055580;
  font-size: 2rem;
}
.calculator__bottom--item.item-grey-big, .calculator__bottom--item.item-grey-small {
  background-color: #90939A;
}
.calculator__bottom--item.item-grey-big {
  font-size: 2.5rem;
}
.calculator__bottom--item.item-grey-small {
  font-size: 1.1rem;
}
.calculator__bottom--item:active {
  -webkit-animation: clicked 0.2s;
          animation: clicked 0.2s;
}
.calculator__bottom--item.item-black:active {
  -webkit-animation: clickedBlack 0.2s;
          animation: clickedBlack 0.2s;
}

@-webkit-keyframes clicked {
  0% {
    box-shadow: inset 1px 0 2px rgba(0, 0, 0, 0.8);
  }
  100% {
    box-shadow: 1px 0px 3px rgba(0, 0, 0, 0.5);
  }
}

@keyframes clicked {
  0% {
    box-shadow: inset 1px 0 2px rgba(0, 0, 0, 0.8);
  }
  100% {
    box-shadow: 1px 0px 3px rgba(0, 0, 0, 0.5);
  }
}
@-webkit-keyframes clickedBlack {
  0% {
    box-shadow: inset 2px 0 2px rgba(255, 255, 255, 0.8);
  }
  100% {
    box-shadow: 1px 0px 3px rgba(0, 0, 0, 0.5);
  }
}
@keyframes clickedBlack {
  0% {
    box-shadow: inset 2px 0 2px rgba(255, 255, 255, 0.8);
  }
  100% {
    box-shadow: 1px 0px 3px rgba(0, 0, 0, 0.5);
  }
}